Github user ajs6f commented on a diff in the pull request:
https://github.com/apache/incubator-commonsrdf/pull/26#discussion_r85336105
--- Diff: api/src/main/java/org/apache/commons/rdf/api/RDFTerm.java ---
@@ -37,4 +55,46 @@
*/
String ntriplesString();
+ /**
+ * Check it this RDFTerm is equal to another RDFTerm.
+ * <p>
+ * If this object is an {@link IRI}, equality is checked using
+ * {@link IRI#equals(Object)}, or if this object is a {@link BlankNode},
+ * equality is checked using {@link BlankNode#equals(Object)}, or if
this
+ * object is a {@link Literal}, equality is checked using
+ * {@link Literal#equals(Object)}.
+ * <p>
+ * Implementations MUST also override {@link #hashCode()} so that two
equal
+ * Literals produce the same hash code.
+ *
+ * @see IRI#equals(Object)
+ * @see BlankNode#equals(Object)
+ * @see Literal#equals(Object)
+ *
+ * @param other
+ * Another object
+ * @return true if other is a RDFTerm and is equal to this
+ */
+ @Override
+ public boolean equals(Object other);
+
+ /**
+ * Calculate a hash code for this RDFTerm.
+ * <p>
+ * As an {@link RDFTerm} is <em>immutable</em>, this method will always
+ * return the same hashCode over the lifetime of this object.
+ * <p>
+ * This method MUST be implemented in conjunction with
+ * {@link #equals(Object)} so that two equal RDFTerm produce the same
hash
--- End diff --
typo: `RDFTerms`
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